111210022012021 has 8 divisors (see below), whose sum is σ = 111562993657440. Its totient is φ = 110857063897968.

The previous prime is 111210022011983. The next prime is 111210022012079. The reversal of 111210022012021 is 120210220012111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111210022012021 - 2²¹ = 111210019914869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111210022011986 and 111210022012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210022012321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13209550 + ... + 19922656.

It is an arithmetic number, because the mean of its divisors is an integer number (13945374207180).

Almost surely, 2^{111210022012021} is an apocalyptic number.

It is an amenable number.

111210022012021 is a deficient number, since it is larger than the sum of its proper divisors (352971645419).

111210022012021 is an equidigital number, since it uses as much as digits as its factorization.

111210022012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765683.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111210022012021 its reverse (120210220012111), we get a palindrome (231420242024132).

The spelling of 111210022012021 in words is "one hundred eleven trillion, two hundred ten billion, twenty-two million, twelve thousand, twenty-one".